Volatility and risk: when not to enter
High margin often hides high risk. How to read volatility, persistence, competition and avoid getting stuck in illiquid stock.
Key takeaways
- Margin ≠ profit: a big spread is most often thin, illiquid stock. Profit comes from turnover: 5% × 50 trades a day beats 60% × one trade a month.
- Watch four risk metrics: volatility (daily price σ), spread persistence, days of inventory and turnover in ISK/day — all shown in the Market columns and the Signals panel.
- The combo high competition + high churn eats the very margin you came for; fast refill means a brisk market that won't let you relax.
- The exit rule matters more than the entry rule: set a threshold of N days / X% against you and sell into the market even at a loss — ISK frozen in illiquid stock isn't working.
Does a high margin always mean profit?
A big margin guarantees nothing on its own: most often it’s thin, illiquid stock with few trades. You buy in and then can’t sell for weeks — capital frozen. Profit comes from turnover, not from the spread number: 5% × 50 trades a day beats 60% × one trade a month.
Which risk metrics should you check before entering?
Volatility — the daily price spread (σ): the higher, the riskier the entry, because the price can move against you while your order sits. Persistence — the share of time the spread stays wide: is the gap real or a one-off spike. Days of inventory — how long the current market depth lasts.
And turnover in ISK/day as a liquidity measure: it answers the key question — will you be able to get out. All four metrics live both in the Market columns (the “All” density) and in the “Signals” panel on the card. The value colour tells you at a glance whether the item is calm.
Competition, churn and refill
Margin is set not only by the spread but by how many others are like you. “Competition” is the number of orders in a narrow band near the best price on each side (buy/sell): the more there are, the more often you’ll have to re-price. “Churn” is how often the best order changes per hour: high churn means an aggressive fight for the top spot.
“Refill” is how many minutes the book takes to restock after it’s eaten. Fast refill is good for liquidity, but it also means both demand and supply are brisk — you won’t get to relax. The combo “high competition + high churn” often eats the very margin you came for.
The illiquidity trap
SKINs, blueprints and rare modules often show a giant “spread” off one or two trades. That’s a trap, not an opportunity: there’s no volume and no way out. In arbitrage the app filters such destinations out by daily volume at the sell hub — but on the raw Market screen the call is yours.
How do you know when to exit a position?
Risk management isn’t “don’t enter”, it’s “know how to exit”. Before entering, set a threshold: if the line doesn’t fill within N days or the price moves X% against you — sell into the market, even at a loss. ISK frozen in illiquid stock costs more than one small realised loss: it isn’t working.
FAQ
Why is a high margin in EVE not always a good thing?
A big spread most often means thin, illiquid stock with few trades: you buy in but can't sell for weeks. Profit comes from turnover, not the spread number — 5% × 50 trades a day beats 60% × one trade a month.
Which risk metrics should I check before entering a position?
Four: volatility (the daily price spread σ), persistence (the share of time the spread stays wide), days of inventory, and turnover in ISK/day as a liquidity measure. All four live in the Market columns and the Signals panel on the Mercator card.
How do I avoid the illiquidity trap in EVE Online?
SKINs, blueprints and rare modules often show a giant spread off one or two trades — that's a trap, not an opportunity: no volume, no way out. In arbitrage Mercator filters such destinations out by daily volume at the sell hub, but on the raw Market screen the call is yours.
What is the exit rule in EVE trading?
Before entering, set a threshold: if the line doesn't fill within N days or the price moves X% against you, sell into the market even at a loss. ISK frozen in illiquid stock costs more than one small realised loss — it simply isn't working.